Question

Please help me with this

Answer 1

x = 24

Explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 10 when x = 8, thus

k =
`(y)/(x)` =
`(10)/(8)` =
`(5)/(4)`

y =
`(5)/(4)` x = 1.25x ← equation of variation

When y = 30

30 = 1.25x ( divide both sides by 1.25 )

x = 24

Answer 2

The answer would be X=24

Explanation:

Y is multiplied by 3 to get the answer 30. Because they are varied directly you have to multiply the 8 by 3 to get your answer!

-Hope this helps-

~Bai~